Weather measurement instrument sensor

A weather measurement instrument sensor comprising:

• a housing having a top surface, a bottom surface, and a sidewall that at least partially define an interior volume within the housing;
• a first arm coupled to the housing and rotatable relative to the housing between a stowed position and a use position;
• a second arm spaced apart from the first arm, coupled to the housing, and rotatable relative to the housing between a stowed position and a use position;
• a wind direction vane coupled to a distal end of the first arm to facilitate measurement of a wind direction;
• an anemometer coupled to a distal end of the second arm to facilitate measurement of a wind speed;
• a temperature and humidity chamber including a temperature sensor, a humidity sensor, and a fan configured to generate an airflow across the temperature sensor and the humidity sensor;
• a water funnel coupled to the top surface of the housing, the water funnel configured to direct a collected rainfall to a rain tipping bucket positioned within the interior volume of the housing;
• an insect repellant chamber formed within the housing, wherein the insect repellant chamber is configured to hold an insect repellant therein;
• and
• wherein the first arm is rotatable relative to the housing about a first axis, wherein the second arm is rotatable relative to the housing about a second axis, and wherein the first axis is parallel to the second axis, and
• wherein the housing includes an upper housing coupled to and separable from a lower housing, wherein the upper housing defines the top surface, wherein the lower housing defines the bottom surface, and wherein the sidewall includes a sidewall of the upper housing extending downward from the top surface and a sidewall of the lower housing extending upward from the bottom surface, wherein the sidewall of the upper housing and the sidewall of the lower housing are nested to overlap one another.